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EP 2 271 615 A1

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(43) Date of publication: 12.01.2011 Bulletin 2011/02 (21) Application number: 09738936.5 (22) Date of filing: 17.04.2009

(51) International Patent Classification (IPC):  C07C 231/02(2006.01) (86) International application number: PCT/KR2009/001996 (87) International publication number: WO 2009/134030 (05.11.2009 Gazette 2009/45)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 30.04.2008 KR 20080040521 (71) Applicant: LG Life Sciences Ltd Seoul 150-010 (KR)

(72) Inventors: HWANG, Kook Sang Daejeon 305-380 (KR) CHUNG, Soon Min Daejeon 305-380 (KR) KIM, Chang Ki Daejeon 305-380 (KR) KIM, Bok Tae Daejeon 305-380 (KR) LEE, Ju Young Daejeon 305-380 (KR) KIM, Byeong Cheol Daejeon 305-380 (KR) JOE, Goon Ho Daejeon 305-380 (KR) (74) Representative: Gillard, Richard Edward et al Elkington and Fife LLP Thavies Inn House 3-4 Holborn Circus London EC1N 2HA London EC1N 2HA (GB)